<template>
  <div class="container3">
    <h2>三兄弟</h2>
    <div>{{msg}}</div>
  </div>
</template>

<script>


export default {
    data(){
        return{
            msg:''
        }
    },
    created(){
       
    }
};
</script>

<style>
.container3 {
  flex-grow: 1;
  height: 100vh;
  background-color: skyblue;
}
</style>
